Coastal GasLink 

Morice River Tunnelling Project

Project Overview

Coastal GasLink Pipeline Ltd. (CGL) will construct and operate a natural gas pipeline from the area near the community of Groundbirch (about 40 km west of Dawson Creek, British Columbia [BC]) to the LNG Canada Development Inc. (LNG Canada) liquefied natural gas (LNG) export facility (LNG Canada export facility) near Kitimat, BC.

The Project will have an initial capacity of about 2 to 3 billion cubic feet/day (bcf/d) (56 million cubic meters per day [mmcm/d] to 85 mmcm/d), with the potential for expansion up to about 5 bcf/d (142 mmcm/d).

CCI was requested to provide desktop detail design, equipment inspection, construction planning and onsite field engineering support. 

Tunnelling Engineering Design Scope:
  • Methodology Assessment Analysis
  • Detailed Risk Assessment
  • IFC Alignment and Profile Drawings
  • Thrust Force Assessments
  • Grout Specification and Buoyancy Assessment
Geotechnical Engineering Scope:
  • Settlement & Heave Analysis
  • Annular space grouting plan
Field Construction Scope:
  • Onsite monitoring and compliance
  • Support optimization efforts
  • Progress and down time tracking